Weather, climate, temperature by months in Jamestown
| Season | Autumn | Winter | Spring | Summer | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Sep | Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | year | ||
| Record high | °C | 26 | 25 | 27 | 28 | 32 | 28 | 30 | 32 | 29 | 28 | 26 | 26 | 32 | |
| Average high | °C | 17 | 17 | 18 | 20 | 21 | 22 | 22 | 21 | 20 | 18 | 17 | 17 | 19 | |
| Average temperature | °C | 16 | 16 | 17 | 18 | 20 | 21 | 21 | 20 | 19 | 17 | 16 | 16 | 18 | |
| Average low | °C | 15 | 15 | 16 | 17 | 18 | 19 | 19 | 18 | 17 | 16 | 15 | 15 | 17 | |
| Record low | °C | 11 | 11 | 13 | 13 | 15 | 15 | 15 | 16 | 13 | 12 | 11 | 11 | 11 | |
| Rain | Days | 18 | 21 | 19 | 18 | 15 | 18 | 18 | 15 | 16 | 16 | 18 | 20 | 212 | |
| Fog | Days | 5 | 4 | 4 | 4 | 4 | 5 | 4 | 3 | 2 | 4 | 4 | 5 | 48 | |
| Average precipitation | Mm. | 30 | 30 | 20 | 30 | 30 | 60 | 50 | 50 | 40 | 50 | 50 | 40 | 480 | |
| Relative humidity | % | 85 | 90 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | 85 | |
| Relative humidity morning | % | 85 | 86 | 87 | 87 | 89 | 90 | 89 | 88 | 85 | 84 | 84 | 85 | 87 | |
| Relative humidity evening | % | 78 | 78 | 77 | 75 | 76 | 76 | 77 | 78 | 77 | 77 | 78 | 79 | 77 | |
| Wind speed | Km/h | 27 | 27 | 25 | 25 | 22 | 22 | 25 | 22 | 22 | 25 | 27 | 27 | 25 | |
| Day Length | Hours | 12 | 13 | 13 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | |
| Dew point | °C | 13 | 13 | 13 | 15 | 16 | 17 | 17 | 17 | 15 | 14 | 13 | 12 | 175 | |
| Growing degree-day | °C | 192 | 198 | 217 | 267 | 310 | 306 | 336 | 308 | 284 | 233 | 207 | 189 | 3047 | |
| Solar radiation, global | Mj/m2 | 18 | 20 | 21 | 24 | 26 | 26 | 24 | 21 | 18 | 16 | 16 | 17 | 21 | |
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Jamestown - Closest airports
Cities close to Jamestown
Showing 1-3 of 3 items.
| Country | Region | City | Population | Costs | Live quality | Climate | Safety | ||
|---|---|---|---|---|---|---|---|---|---|
| Month | 1-10 | 1-10 | 1-10 | ||||||
| 701 km | Saint Helena | Ascension | Georgetown | 538 | |||||
| 0 km | Saint Helena | Saint Helena | Jamestown | 637 | |||||
| 1,315 km | Saint Helena | Tristan da Cunha | Edinburgh of the Seven Seas | 271 |